Pulverizer.



T. OJ WILLI AMS. PULVEBIZER. APPLICATION rum) JULY 24. 19oa.

4 SHEETS-SHEET 1.

Patented Jim. 11, 1910.

T. 0. WILLIAMS.- PULVERIZEB. APPLICATION rum) JULY 24. 1909.

4 SHEETS-HEIGHT 2.

Patented Jan. 11,1910.

T-. 0. WILLIAMS. PULVEBIZEB. APPLICATION PILIID JULY 24. 1909.

4SHBET8-SHEET 3.

durum,

Patented Jan.-1l,19l0.

. 'T. 0. WILLIAMS.

PULVEBIZEB. APPLICATION FILED JULY 24. 1909.

Patented Jan. 11,1910.

4 snnws-s11nm 4.

THOMAS o. WILLIAMS, or DIXON, rumors.

rurvnnrznn.

Specification of Letters Patent.

Patented Jan. 11, 1910.

Application filed July 24, 1909. Serial No. 509,257.

To all whom c't may concern:

Be it known that I, THOMAS O. WILLIAMS, a citizen of the United States,-residing at Dixon, in the county of Lee and State of Illinois, haveinvented new and useful Improvements in Pulverizers, of which thefollowing is aspecification.

Th1s invention relates to that class of pulverizing machines in which acrushing ring is, supported upon a plurality of crushing rolls, theshafts of the latter being radially movable withreference to thecrushing ring and to the casing in which the mechanism is inclosed, andsaid roll carrying shafts being flexibly supported by means of springs,thus making the crushing ring and the rolls relatively yielding. simpliand improve the construction and operation of this class of machines;and with these and. other ends in view which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claim.

' In the accompan drawings has been illustrated a simple and preferredform of elevation partly in section showing the ma-' chine with the nearend plate or cover of the i view of the scraper.

the invention; 1t being however, understood that no limitationisnecessarily made to the details therein exhibited, alterations andmodifications within the scope of the invention may be resorted to-whendesired.

In the drawings: Figure 1 is a side'view of a .pulverizingmachineconstructed in ac- 2' is a side precise structural casing removed. Fig.3 is an end view. Fig. 4 is a sectional detail view showing one of thecrushing rolls, a po -'on of the shaft of the same and showing also. across sectional view of the crushing ring. Fig. 5 is a detail plan viewof the scraper, for removing thepulverized material; Fig. 6 is a side F"7 is a detail view of one of the dust guar Theigresent invention has forits object to are the tension of the springs may Corresponding parts inthe several views are denoted by like characters of reference.

The crushin ring A is supported upon a plurality of rofis 10-10, theshafts of which, 11, project through the heads or ends 12 of the casingB; the ends-of thecasing being provided with radially disposed slots 13.The roll carrying shafts are forced out wardly by the action of suitablydisposed springs'as will be hereinafter more fully described so that thecrushing ring will be supported entirely upon the rolls and indirectcontact with each of the latter. The crushing ring is provided, at itsedges with flanges 14, beveled upon their inner faces as shown "at 15 inFig. 4, and lateral displacement of the rin will thus be prevented.

The arings 15 in which. the projecting ends of the roll gprted forrotation are 'ally extending arms 16 provided with rathat are slidable.in sockets 17 supported uon the ends of cross bars 18" that are securey mounted upon the casing, exteriorly of the latter. Oil cups orlubricating devices 19 have been shown upon the shaft bearings'15. Thearms 16 are providedwith washers justing nuts 21 for -the purpose ofregulating the stress or tension of springs 22 which are coiled u on thearms 16 between the outer ends of the sockets 17 and the inner faces ofthe washers 20, and the said washers as well as the outer ends of thesockets preferably provided with recesses indicate in dotted lines at 23in Fig. 3 of the drawin said recesses aifordingseats for the endso thesprings to prevent the latter from spreading. The springs 22 should beof great strength and resisting power, and be regulated, as stated, bymeans of the adjusting nuts 21. It willbe seen arrangement of parts theseveral rolls w1ll be forced radiall in an outward direction by theaction of t e springs, thus supporting the crushing ringin such a mannerthat non-friable material such as pieces of iron and the like may passbetween the crushing surface of the ring and the, rolls without carryingshafts 11 are sup- 20 and with adthat by this construction and suitablydisposed springs 26 consisting of arched resilient plates mounted uponthe plate 35 having one en opper 28 which is equipped which it will beretained by the centrifugal force shafts, abutting upon the inner endsofthe bearings 15 and having their terminal ends fitted in recesses 27 adacent to the ends of the plates 25 constituting dust guards. The latteras well as the springs 26 obviously move radially in unison with theshafts, and said plates or dust guards will therefore be madesufliciently lon to coverthe slots'or openings 13 under :51 liable toobtain.

The material that is to be crushed is sup-' lied to the machine througha chute or with a feed gate or valve operable by means of a handle 29.From the chute or hopper 28 divergent hmbs or feed trunks 30-extendadjacent to the ends of the casing each of which is provided with a feedopening 31 that is conveniently accessible through hand holes 32 in thelimbs 30 which are normally covered by doors or slides 33. Through theapertures 31 the coarse material that is to be pulverized drops upon adeflector 34 which is supported within the crushing ring and easing,transversely of the latter. Over the deflector 34 the material passes tosurface or crushing face of the ring A upon action of when the machineis in operation.

For the purpose of removing the crushed or pulverized material from themachine, I avail myself of a scraper consisting of a slightly curved orupturned as shown at 36 to present a scrapplate lng edge 37 the oppositeend of the 35 is rovided with a V-shaped deflector 38 where y thematerial passing through the plate will be deflected laterally to bothsides. The side edges of the plate 35 are provided with hangers 39 Whoin operation are mounted upon a rock shaft 40 suitably supported foroscillation transversely of the casing and projecting through one end ofsaid casing. The projecting end of the rock shaft is provided with anarm or crank 41 which is pressed by a suitably arranged to spring 42,the tension of which is exerte that the edge 37 so oscillate the rockshaft of the scraper will be held resiliently in engagement with thecrushing surface of the ring A. Suitable means'may be'providedconditions that are the inner I for the purpose .of regulatingethetensionof the spring 42; and it will seen that by this mechanism thescraper will be held in engagement ,with the crushing ring at all timesand under all conditions when the machine is in operation.

The shafts 11 su lporting' the crushing rolls 10 are prefera' yprovided, intermediate the ends of the rolls, withswelled portions 43,and the ends of the rolls are provided with recesses 44 forming seatsfor washers 45 which may be secured by means of rods 46 extendinglongitudinally throu h the rolls, th-us retaining the rolls secure yupon the shafts. This construction has been illustrated in Fig. 4 of thedrawings.

The casin of the machine has been shown provided with suitable handholes 49 arranged in various locations to aiford convenient access tothe interior, said hand holes being normally covered by doors or slides50 of suitable construction.

From the foregoing description taken innexed, the operation andadvantages of this invention will be readily, understood by thoseskilled in the art to which it appertains. The material which is fedinto the machine through the hopper 28 will be conrmg, the side flangesof which prevent lateral displacement of the machine. The crushing ringwill be revolved by frictional contact with thedriving roll, and at 'aspeed sufliciently high to cause the material fed into the machine toremain in engagement with the crushing face of the ring by the action ofcentrifugal force. The material will be carried by the ring past theseveral rolls between the faces of which and that of the ring it will becrushed or reduced to the desired degree of fineness which may beregulated by the tension of the springs whereby the roll carying shaftsare forced radially outward. After bein subjected to the acmoved fromthe crushing 'faceof. the ring by supported in an inclined position sothat the material will drop by avity over said ,scraper, the deflector38 of zvhich will deflect the casing between which crushing ring, thetwo streams of crushed or pul erized material will be permitted to dropand to finally escape through the bottom of the casing.

This improved pulverizing machine is simple in construction, durable andit will be found to'be thoroughly effective for the pur OStl for whichit is rovided.

aving thus described t e invention what is claimed isa crushing ringsupported upon a plurality connection with the drawings hereto an-.

veyed over the deflector 34 onto the crushing the'material in thedirection of the ends of and the ends of the tion of the several ro ls,the material is rethe action of the scraper 35, which latter is v In apulverizer of the character described,

of rolls, resilient supporting means for the laterally in two directionsover theedges of' shafts of the rolls whereby inward displacethe ring.10 ment of said rolls will be resisted, an in- In testimony whereof Iaffix my signature clined scraper supported within the crushin presenceof two Witnesses. ing ring With one edge in resilient engage- THOMAS O.WVILLIAMS. ment with the crushing face of the ring, and \Vitnesses: aV-shaped deflector upon the scraper \vhere- F. BUGKLEY,

by the pulverized material will be deflected A WV. G. WILLIAMS.

